A witness to a UFO, specifically a silver shiny disc, over Denton, Texas, felt as if it "noticed" them, before mysteriously disappearing. The photo the witness snapped was taken through a car window, so it is not terribly clear, but does show a highly reflective object in the daytime sky. Check out the photo and testimony submitted to MUFON (case 83746):

I was driving to Denton for a case, I am an investigator for child protective services, when I saw the UFO. It was broad daylight and there were no clouds in the sky. I saw a silvery shining reflection in the sky. I immediately felt like it noticed me and then followed along the direction of my car for at least two-three miles. It did not look like a plane or a helicopter. It was disc shaped and then shone bright white lights before it disappeared. I did not feel scared or apprehensive. More so I was curious and thought that this strangely synchronicity because I lately I have been asking my spirit guides to reveal themselves to me during my mediation. In no way am I saying that this was a manifestation of that but found it interesting. I managed to take a picture of it before it disappeared about a minute later.

I observed a UFO briefly reappear about an hour or so later. It was a silvery/grey disk and was again seeming to follow my path while I was driving but disappeared after about 30 seconds.

Considering the time of day this UFO was seen, there is a good chance someone else in the area saw it. Were you lucky enough to be a witness? Report your sighting!